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Little config tool on first startup to choose which device you want to run on

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master
MitchellHansen 8 years ago
parent f5c3f63b68
commit 3670d6509e
2 changed files with 168 additions and 192 deletions
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82
include/OpenCL.h
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@ -28,44 +28,6 @@
#endif
class device {
public:
struct packed_data {
cl_device_type type;
cl_uint clock_frequency;
char version[64];
cl_uint comp_units;
char extensions[1024];
char name[128];
};
device(cl_device_id device_id, cl_platform_id platform_id);
private:
cl_device_id id;
cl_device_type type;
cl_uint clock_frequency;
char version[128];
cl_platform_id platform;
cl_uint comp_units;
char extensions[1024];
char name[256];
cl_bool is_little_endian = false;
bool cl_gl_sharing = false;
char platform_name[128];
};
const struct saved_device {
};
class OpenCL {
public:
@ -84,7 +46,6 @@ public:
// - Contexts cannot be created using more than one platform!
bool load_config();
bool init(sf::Vector4f *range);
@ -93,9 +54,50 @@ public:
void draw(sf::RenderWindow *window);
class device {
public:
#pragma pack(push, 1)
struct packed_data {
cl_device_type device_type;
cl_uint clock_frequency;
char opencl_version[64];
cl_uint compute_units;
char device_extensions[1024];
char device_name[256];
char platform_name[128];
};
#pragma pack(pop)
device(cl_device_id device_id, cl_platform_id platform_id);
void print(std::ostream& stream);
void print_packed_data(std::ostream& stream);
cl_device_id getDeviceId() const { return device_id; };
cl_platform_id getPlatformId() const { return platform_id; };
private:
packed_data data;
cl_device_id device_id;
cl_platform_id platform_id;
cl_bool is_little_endian = false;
bool cl_gl_sharing = false;
};
private:
bool load_config();
void save_config();
std::vector<device> device_list;
std::vector<std::pair<cl_platform_id, std::vector<cl_device_id>>> platforms_and_devices;
@ -153,6 +155,6 @@ private:
void assign_kernel_args();
int set_kernel_arg(std::string kernel_name, int index, std::string buffer_name);
bool vr_assert(int error_code, std::string function_name);
static bool vr_assert(int error_code, std::string function_name);
};

274
src/OpenCL.cpp
Unescape View File

@ -50,16 +50,9 @@ void OpenCL::aquire_hardware() {
platforms_and_devices.push_back(std::make_pair(id, std::vector<cl_device_id>()));
}
for (std::pair<cl_platform_id, std::vector<cl_device_id>)
// For each platform, populate its devices
int device_position = 0;
for (unsigned int i = 0; i < plt_cnt; i++) {
char plt_name[128];
clGetPlatformInfo(plt_buf[i], CL_PLATFORM_NAME, 128, (void*)&plt_name, nullptr);
std::cout << "Platform name " << plt_name << std::endl;
cl_uint deviceIdCount = 0;
error = clGetDeviceIDs(plt_buf[i], CL_DEVICE_TYPE_ALL, 0, nullptr, &deviceIdCount);
@ -73,132 +66,14 @@ void OpenCL::aquire_hardware() {
std::vector<cl_device_id> deviceIds(deviceIdCount);
error = clGetDeviceIDs(plt_buf[i], CL_DEVICE_TYPE_ALL, deviceIdCount, deviceIds.data(), NULL);
if (vr_assert(error, "clGetDeviceIDs"))
return;
for (unsigned int q = 0; q < deviceIdCount; q++) {
device d;
d.id = deviceIds[q];
clGetDeviceInfo(d.id, CL_DEVICE_PLATFORM, sizeof(cl_platform_id), &d.platform, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_VERSION, sizeof(char) * 128, &d.version, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_TYPE, sizeof(cl_device_type), &d.type, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(cl_uint), &d.clock_frequency, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(cl_uint), &d.comp_units, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_EXTENSIONS, 1024, &d.extensions, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_NAME, 256, &d.name, NULL);
clGetDeviceInfo(d.id, CL_DEVICE_ENDIAN_LITTLE, sizeof(cl_bool), &d.is_little_endian, NULL);
std::cout << "Device: " << q << std::endl;
std::cout << "Device ID : " << d.id << std::endl;
std::cout << "Device Name : " << d.name << std::endl;
memcpy(d.platform_name, plt_name, 128);
std::cout << "Platform name : " << d.platform_name << std::endl;
std::cout << "Platform ID : " << d.platform << std::endl;
std::cout << "Device Version : " << d.version << std::endl;
std::cout << "Device Type : ";
if (d.type == CL_DEVICE_TYPE_CPU)
std::cout << "CPU" << std::endl;
for (int d = 0; d < deviceIds.size(); d++) {
else if (d.type == CL_DEVICE_TYPE_GPU)
std::cout << "GPU" << std::endl;
device_list.emplace_back(device(deviceIds[d], plt_buf.at(i)));
else if (d.type == CL_DEVICE_TYPE_ACCELERATOR)
std::cout << "Accelerator" << std::endl;
std::cout << "Max clock frequency : " << d.clock_frequency << std::endl;
std::cout << "Max compute units : " << d.comp_units << std::endl;
std::cout << "Is little endian : " << std::boolalpha << static_cast<bool>(d.is_little_endian) << std::endl;
std::cout << "cl_khr_gl_sharing supported: ";
if (std::string(d.extensions).find("cl_khr_gl_sharing") == std::string::npos &&
std::string(d.extensions).find("cl_APPLE_gl_sharing") == std::string::npos) {
std::cout << "False" << std::endl;
}
std::cout << "True" << std::endl;
d.cl_gl_sharing = true;
std::cout << "Extensions supported: " << std::endl;
std::cout << std::string(d.extensions) << std::endl;
std::cout << " ===================================================================================== " << std::endl;
plt_ids.at(d.platform).push_back(d);
}
}
// The devices how now been queried we want to shoot for a gpu with the fastest clock,
// falling back to the cpu with the fastest clock if we weren't able to find one
device current_best_device;
current_best_device.type = 0; // Set this to 0 so the first run always selects a new device
current_best_device.clock_frequency = 0;
current_best_device.comp_units = 0;
for (auto kvp : plt_ids) {
for (auto device : kvp.second) {
// Gonna just split this up into cases. There are so many devices I cant test with
// that opencl supports. I'm not going to waste my time making a generic implimentation
// Upon success of a condition, set the current best device values
//if (strcmp(device.version, "OpenCL 1.2 ") == 0 && strcmp(device.version, current_best_device.version) != 0) {
// current_best_device = device;
//}
// If the current device is not a GPU and we are comparing it to a GPU
if (device.type == CL_DEVICE_TYPE_GPU && current_best_device.type != CL_DEVICE_TYPE_GPU) {
current_best_device = device;
}
//if (device.type == CL_DEVICE_TYPE_CPU &&
// current_best_device.type != CL_DEVICE_TYPE_CPU) {
// current_best_device = device;
//}
// Get the unit with the higher compute units
if (device.comp_units > current_best_device.comp_units) {
current_best_device = device;
}
// If we are comparing CPU to CPU get the one with the best clock
if (current_best_device.type != CL_DEVICE_TYPE_GPU && device.clock_frequency > current_best_device.clock_frequency) {
current_best_device = device;
}
if (current_best_device.cl_gl_sharing == false && device.cl_gl_sharing == true) {
current_best_device = device;
}
}
}
platform_id = current_best_device.platform;
device_id = current_best_device.id;
std::cout << std::endl;
std::cout << "Selected Platform : " << platform_id << std::endl;
std::cout << "Selected Device : " << device_id << std::endl;
std::cout << "Selected Name : " << current_best_device.name << std::endl;
std::cout << "Selected Version : " << current_best_device.version << std::endl;
if (current_best_device.cl_gl_sharing == false) {
std::cout << "This device does not support the cl_khr_gl_sharing extension" << std::endl;
return;
}
}
void OpenCL::create_shared_context() {
// Hurray for standards!
@ -236,28 +111,16 @@ void OpenCL::create_shared_context() {
};
#endif
context = clCreateContextFromType(context_properties,
CL_DEVICE_TYPE_CPU,
nullptr,
nullptr,
// Create our shared context
context = clCreateContext(
context_properties,
1,
&device_id,
nullptr, nullptr,
&error
);
cl_device_id devices[10]{0};
size_t num_devices = 0;
clGetContextInfo(context, CL_CONTEXT_DEVICES, sizeof(cl_device_id) * 10, (void*)&devices, &num_devices);
std::cout << num_devices;
//// Create our shared context
//context = clCreateContext(
// context_properties,
// 1,
// &device_id,
// nullptr, nullptr,
// &error
//);
if (vr_assert(error, "clCreateContext"))
return;
@ -467,29 +330,78 @@ OpenCL::~OpenCL() {
bool OpenCL::load_config() {
std::ifstream input_file("config.bin", std::ios::binary | std::ios::in);
std::ifstream input_file("device_config.bin", std::ios::binary | std::ios::in);
if (!input_file.is_open()) {
std::cout << "No config file..." << std::endl;
return false;
}
saved_device prefered_device;
input_file.read(reinterpret_cast<char*>(&prefered_device), sizeof(prefered_device));
device::packed_data data;
input_file.read(reinterpret_cast<char*>(&data), sizeof(data));
std::cout << "config loaded, looking for device..." << std::endl;
for (auto d: device_list) {
if (memcmp(&d, &data, sizeof(device::packed_data)) == 0) {
std::cout << "Found saved device" << std::endl;
device_id = d.getDeviceId();
platform_id = d.getPlatformId();
break;
}
}
input_file.close();
return true;
}
void OpenCL::save_config() {
std::ofstream output_file;
output_file.open("device_config.bin", std::ofstream::binary | std::ofstream::out | std::ofstream::trunc);
device d(device_id, platform_id);
d.print_packed_data(output_file);
output_file.close();
}
bool OpenCL::init(sf::Vector4f *range)
{
// Initialize opencl up to the point where we start assigning buffers
aquire_hardware();
if (!load_config()) {
std::cout << "Select a device number which you wish to use" << std::endl;
for (int i = 0; i < device_list.size(); i++) {
std::cout << "\n-----------------------------------------------------------------" << std::endl;
std::cout << "\tDevice Number : " << i << std::endl;
std::cout << "-----------------------------------------------------------------" << std::endl;
device_list.at(i).print(std::cout);
}
int selection = -1;
while (selection < 0 && selection >= device_list.size()) {
std::cout << "Device which you wish to use : ";
std::cin >> selection;
}
device_id = device_list.at(selection).getDeviceId();
platform_id = device_list.at(selection).getPlatformId();
save_config();
}
create_shared_context();
create_command_queue();
@ -709,3 +621,65 @@ bool OpenCL::vr_assert(int error_code, std::string function_name) {
std::cout << err_msg << " =at= " << function_name << std::endl;
return true;
}
OpenCL::device::device(cl_device_id device_id, cl_platform_id platform_id) {
this->device_id = device_id;
this->platform_id = platform_id;
int error = 0;
error = clGetPlatformInfo(platform_id, CL_PLATFORM_NAME, 128, (void*)&data.platform_name, nullptr);
if (vr_assert(error, "clGetPlatformInfo"))
return;
error = clGetDeviceInfo(device_id, CL_DEVICE_VERSION, sizeof(char) * 128, &data.opencl_version, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_TYPE, sizeof(cl_device_type), &data.device_type, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(cl_uint), &data.clock_frequency, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(cl_uint), &data.compute_units, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_EXTENSIONS, 1024, &data.device_extensions, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_NAME, 256, &data.device_name, NULL);
error = clGetDeviceInfo(device_id, CL_DEVICE_ENDIAN_LITTLE, sizeof(cl_bool), &is_little_endian, NULL);
// Check for the sharing extension
if (std::string(data.device_extensions).find("cl_khr_gl_sharing") != std::string::npos ||
std::string(data.device_extensions).find("cl_APPLE_gl_sharing") != std::string::npos) {
cl_gl_sharing = true;
}
}
void OpenCL::device::print(std::ostream& stream) {
stream << "\n\tDevice ID : " << device_id << std::endl;
stream << "\tDevice Name : " << data.device_name << std::endl;
stream << "\tPlatform ID : " << platform_id << std::endl;
stream << "\tPlatform Name : " << data.platform_name << std::endl;
stream << "\tOpenCL Version : " << data.opencl_version << std::endl;
stream << "\tSupports sharing : " << std::boolalpha << cl_gl_sharing << std::endl;
stream << "\tDevice Type : ";
if (data.device_type == CL_DEVICE_TYPE_CPU)
stream << "CPU" << std::endl;
else if (data.device_type == CL_DEVICE_TYPE_GPU)
stream << "GPU" << std::endl;
else if (data.device_type == CL_DEVICE_TYPE_ACCELERATOR)
stream << "Accelerator" << std::endl;
stream << "\tIs Little Endian : " << std::boolalpha << is_little_endian << std::endl;
stream << "\tClock Frequency : " << data.clock_frequency << std::endl;
stream << "\tCompute Units : " << data.compute_units << std::endl;
stream << "\n*Extensions*" << std::endl;
stream << data.device_extensions << std::endl;
stream << "\n";
}
void OpenCL::device::print_packed_data(std::ostream& stream) {
stream.write(reinterpret_cast<char*>(&data), sizeof(data));
}

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